DSP, Micros & Memory


Low pincount PIC microcontrollers

28 January 2004 DSP, Micros & Memory

Microchip's PIC12F683, PIC16F684 and PIC16F688 microcontrollers offer up to 7168 bytes of Flash program memory, making use of PMOS electrically erasable cell (PEEC) Flash technology that offers one million erase/write cycle endurance. The devices also include on-board EEPROM data memory, and offer several peripheral options with integrated nanoWatt technology. Standard analog peripherals include single or dual comparators, and up to eight channels of 10-bit A/D. In addition, they support a wide operating voltage of 2-5,5 V.

The PIC12F683 features a standard capture/compare/PWM module, while the PIC16F684 features an enhanced capture/compare/PWM module with deadband control, up to four outputs and emergency shutdown. The PIC16F688 features an EUSART peripheral to support RS232/485-type communications and the LIN protocol.

Microchip's existing 8- and 14-pin Flash devices already offer nanoWatt technology features such as nanoAmp standby current, fast-startup internal oscillator, and brown-out detection for reliable operation. These new devices offer additional power-management features such as software-selectable clock speed, software-controlled brown-out detection, ultra-low-power wakeup on change, a lower-power realtime clock timer and an extended watchdog timer. These provide maximum flexibility in managing power consumption, without sacrificing system reliability.

The three new PIC microcontrollers come in small-footprint 8-pin SOIC and 14-pin TSSOP packages. The devices are supported by Microchip's development tools.

For more information contact Avnet Kopp, 011 809 6100, Memec SA, 011 897 8600 or Tempe Technologies, 011 452 0530.



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